@progress/kendo-date-math/dist/npm/day-of-week.js

Kendo UI typescript package exporting functions for Date manipulations

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var direction_enum_1 = require("./direction.enum");
var adjust_dst_1 = require("./adjust-dst");
var clone_date_1 = require("./clone-date");
/**
 * @hidden
 *
 * A function which returns the next or previous date for a specific week day. For example, `Day.Monday`.
 *
 * @param date - The date to calculate from.
 * @param weekDay - The `Day` enum specifying the desired week day.
 * @param direction - The `Direction` enum specifying the calculation direction.
 * @returns - A `Date` instance.
 *
 * @example
 * ```ts-no-run
 * dayOfWeek(new Date(2016, 0, 1), Day.Wednesday, Direction.Forward); // 2016-01-06, Wednesday
 * dayOfWeek(new Date(2016, 0, 1), Day.Wednesday, Direction.Backward); // 2015-12-30, Wednesday
 * ```
 */
exports.dayOfWeek = function (date, weekDay, direction) {
    if (direction === void 0) { direction = direction_enum_1.Direction.Forward; }
    var newDate = clone_date_1.cloneDate(date);
    var newDay = ((weekDay - newDate.getDay()) + (7 * direction)) % 7;
    newDate.setDate(newDate.getDate() + newDay);
    return adjust_dst_1.adjustDST(newDate, date.getHours());
};